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Finding the Third Proportional to 2,546 and 4,780

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Solution

The third proportional to 2,546 and 4,780 is: 8,974.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,546 : 4,780 = 4,780 : x
  2. Step 2: Convert to fraction form
    2,546/4,780 = 4,780/x
  3. Step 3: Cross multiply
    2,546x = 4,780 × 4,780
  4. Step 4: Simplify right side
    2,546x = 22,848,400
  5. Step 5: Solve for x
    x = 22,848,400/2,546
  6. Step 6: Final answer
    x = 8,974.23

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.